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Ann Neurol. 2004 Sep;56(3):427-31.

Homozygous PINK1 C-terminus mutation causing early-onset parkinsonism.

Author information

1
Department of Clinical Genetics, Erasmus MC Rotterdam, The Netherlands.

Abstract

Two homozygous mutations in the PINK1 gene, encoding a mitochondrial putative protein kinase, recently have been identified in families with PARK6-linked, autosomal recessive early-onset parkinsonism (AREP). Here, we describe a novel homozygous mutation (1573_1574 insTTAG) identified in an AREP patient, which causes a frameshift and truncation at the C-terminus of the PINK1 protein, outside the kinase catalytic domain. The clinical phenotype includes early-onset (28 years) parkinsonism, foot dystonia at onset, good levodopa response, slow progression, early levodopa-induced dyskinesias, and sleep benefit, thereby resembling closely parkin-related disease. These findings confirm that recessive mutations in PINK1 cause early-onset parkinsonism and expand the associated clinical phenotype.

PMID:
15349871
DOI:
10.1002/ana.20247
[Indexed for MEDLINE]

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